<?php

/**
 * @file
 * Editor integration functions for markItUp.
 */

/**
 * Plugin implementation of hook_editor().
 */
function wysiwyg_markitup_editor() {
    $editor['markitup'] = array(
        'title' => 'markItUp',
        'vendor url' => 'http://markitup.jaysalvat.com',
        'download url' => 'http://markitup.jaysalvat.com/downloads',
        'library path' => wysiwyg_get_path('markitup'),
        'libraries' => array(
            '' => array(
                'title' => 'Source',
                'files' => array('markitup/jquery.markitup.js'),
            ),
            'pack' => array(
                'title' => 'Packed',
                'files' => array('markitup/jquery.markitup.pack.js'),
            ),
        ),
        'version callback' => 'wysiwyg_markitup_version',
        'themes callback' => 'wysiwyg_markitup_themes',
        'settings callback' => 'wysiwyg_markitup_settings',
        'plugin callback' => 'wysiwyg_markitup_plugins',
        'versions' => array(
            '1.1.5' => array(
                'js files' => array('markitup.js'),
            ),
        ),
    );
    return $editor;
}

/**
 * Detect editor version.
 *
 * @param $editor
 *   An array containing editor properties as returned from hook_editor().
 *
 * @return
 *   The installed editor version.
 */
function wysiwyg_markitup_version($editor) {
    // Changelog was in markitup/markitup/readme.txt <= 1.1.5.
    $changelog = $editor['library path'] . '/markitup/readme.txt';
    if (!file_exists($changelog)) {
        // Changelog was moved up to markitup/CHANGELOG.md after 1.1.5.
        $changelog = $editor['library path'] . '/CHANGELOG.md';
        if (!file_exists($changelog)) {
            return;
        }
    }
    $changelog = fopen($changelog, 'r');
    $line = fgets($changelog);
    if (preg_match('@([0-9\.]+)@', $line, $version)) {
        fclose($changelog);
        return $version[1];
    }
    fclose($changelog);
}

/**
 * Determine available editor themes or check/reset a given one.
 *
 * @param $editor
 *   A processed hook_editor() array of editor properties.
 * @param $profile
 *   A wysiwyg editor profile.
 *
 * @return
 *   An array of theme names. The first returned name should be the default
 *   theme name.
 */
function wysiwyg_markitup_themes($editor, $profile) {
    return array('simple', 'markitup');
}

/**
 * Return runtime editor settings for a given wysiwyg profile.
 *
 * @param $editor
 *   A processed hook_editor() array of editor properties.
 * @param $config
 *   An array containing wysiwyg editor profile settings.
 * @param $theme
 *   The name of a theme/GUI/skin to use.
 *
 * @return
 *   A settings array to be populated in
 *   Drupal.settings.wysiwyg.configs.{editor}
 */
function wysiwyg_markitup_settings($editor, $config, $theme) {
    // Whoever is guilty for adding this horrible CSS-file-without-filepath
    // override "feature" to Drupal core... stand in the corner!
    drupal_add_css($editor['library path'] . '/markitup/skins/' . $theme . '/style.css', 'theme');

    $settings = array(
        'root' => base_path() . $editor['library path'] . '/markitup/',
        'nameSpace' => $theme,
        'markupSet' => array(),
    );

    // Add configured buttons or all available.
    $default_buttons = array(
        'bold' => array(
            'name' => t('Bold'),
            'className' => 'markitup-bold',
            'key' => 'B',
            'openWith' => '(!(<strong>|!|<b>)!)',
            'closeWith' => '(!(</strong>|!|</b>)!)',
        ),
        'italic' => array(
            'name' => t('Italic'),
            'className' => 'markitup-italic',
            'key' => 'I',
            'openWith' => '(!(<em>|!|<i>)!)',
            'closeWith' => '(!(</em>|!|</i>)!)',
        ),
        'stroke' => array(
            'name' => t('Strike-through'),
            'className' => 'markitup-stroke',
            'key' => 'S',
            'openWith' => '<del>',
            'closeWith' => '</del>',
        ),
        'image' => array(
            'name' => t('Image'),
            'className' => 'markitup-image',
            'key' => 'P',
            'replaceWith' => '<img src="[![Source:!:http://]!]" alt="[![Alternative text]!]" />',
        ),
        'link' => array(
            'name' => t('Link'),
            'className' => 'markitup-link',
            'key' => 'K',
            'openWith' => '<a href="[![Link:!:http://]!]"(!( title="[![Title]!]")!)>',
            'closeWith' => '</a>',
            'placeHolder' => 'Your text to link...',
        ),
        // @todo
        // 'cleanup' => array('name' => t('Clean-up'), 'className' => 'markitup-cleanup', 'replaceWith' => 'function(markitup) { return markitup.selection.replace(/<(.*?)>/g, "") }'),
        'preview' => array(
            'name' => t('Preview'),
            'className' => 'markitup-preview',
            'call' => 'preview',
        ),
    );
    $settings['markupSet'] = array();
    if (!empty($config['buttons'])) {
        foreach ($config['buttons'] as $plugin) {
            foreach ($plugin as $button => $enabled) {
                if (isset($default_buttons[$button])) {
                    $settings['markupSet'][$button] = $default_buttons[$button];
                }
            }
        }
    }

    return $settings;
}

/**
 * Return internal plugins for this editor; semi-implementation of hook_wysiwyg_plugin().
 */
function wysiwyg_markitup_plugins($editor) {
    return array(
        'default' => array(
            'buttons' => array(
                'bold' => t('Bold'), 'italic' => t('Italic'),
                'stroke' => t('Strike-through'),
                'link' => t('Link'),
                'image' => t('Image'),
                // 'cleanup' => t('Clean-up'),
                'preview' => t('Preview'),
            ),
            'internal' => TRUE,
        ),
    );
}

